Sony Corporation

Japan Capacitor Industrial Co., Ltd.

Masaya Otsuka

Teruhiko Kori

Hiroshi Kubo

An electrode foil having high capacitance per unit volume is provided. The electrode foil is an electrode foil for an electrolytic capacitor. The electrode foil is an electrode foil extending in a longitudinal direction and having a width direction orthogonal to the longitudinal direction, the electrode foil including an enlarged surface portion on a surface of the electrode foil, wherein a crack is formed in the enlarged surface portion in a direction oblique to the width direction.

Electrode foil for electrolytic capacitor and electrolytic capacitor

Recording control with additional information superposed on data and recording control in response to a type of a recording medium on which data are recorded are disclosed. A recording apparatus for recording data onto a recording medium includes an identification data detection section for detecting identification data for identification of data from the data, a copying count data detection section for detecting copying count data for limiting the number of times of copying the data from the data, and a recording control section for controlling recording of the data onto the recording medium based on the identification data detected by the identification data detection section and the copying count data detected by the copying count data detection section. Another recording apparatus for recording data onto a recording medium includes a discrimination section for discriminating a type of the recording medium, and a control section for selecting a recording control method for recording the data onto the recording medium in response to the discrimination section and controlling recording of the data onto the recording medium in accordance with the selected recording control method.

Copy protection apparatus and method

Outputting apparatus, outputting method, recording apparatus, recording method, reproduction apparatus, reproduction method and recording medium

A recorder provides to a recorder/player via a high-speed bus content-related information such as a digital audio signal as information, a content ID being identification information on the digital audio signal and a standard playing time of the digital audio signal. The recorder/player has a controller which stores the content ID into a copy-history information management memory when the same content ID is not existent in the memory. The content ID is held for a period measured by a timer. For this period, the recording function of the recorder/player is limited so that the same digital audio signal cannot be copied at a high speed.

Method for limited recording of an information signal, system for controlled recording of an information signal, and information signal recording apparatus

An information signal copy managing method for properly protecting the copyright of information signals and, at the same time, guaranteeing user advantages in copying information signals within a limited range. Information indicative of the start and end of each piece of information content covered by copyright is superimposed thereon as electronic watermark information. The resultant information signal is transmitted. When the received information signal is copied, both the information indicative of the start of the information content and the information indicative of the end thereof are detected from the electronic watermark information, determining the completion of copying. Thus, copying of information content is managed.

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Tokyo, Japan

Masaya Otsuka